PSA: If you don't want to make your best effort to win, don't play ranked
I see this a lot lately. People lose lane hard or even don't use the champion as they should and make the excuse of learning the champion or the classical "I don't care about the game anyway". It's quite depressing to play with someone spamming surrender vote, making offbuilds for "fun" or threatening to just go afk instead of playing the game competitively and ashing them to stay in a match they don't even enjoy. There are already lots of things that make ranked games either stomp or getting stomped, we don't really need those who should have played normals.